Floating riddle



Nov. 4 1 24 C. E. WYMAN FLOATING RIDDLE v Filed Jan. 22, 1923 2 SlgeetsSheet 1 3 Mum W01,

Nov. 4 19214. 1,513,780

C. E. WYMAN FLOAT ING RIDDLE Filed Jan. 22, 1923' 2 Sheets-Sheet 2 Patented Nov. 4, 1924.

UNITED STATES una FFEQE.

. FLOATING RIDDLE.

Application filed January 22, 1923.

To all whom it may concern:

Be it known that I, GHAnLns E. WYMAN, a citizen of the United States, residing at Pekin, in the county of lVashington and State of Indiana, have invented a new and useful Floating Riddle, of which the following is a specification.

This invention relates to threshing machines and more particularly to riddles for separating the grain from the chaff.

The object of the invention is to provide what may be termed a floating riddle so constructed and mounted as to always assume a substantially horizontal or slightly inclined position, no matter in What position the thresher may be.

Another object is to provide a. riddle of this character which can be shaken and yet remain in proper working position even if the thresher is not even.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure 1 represents a top plan view of a riddle constructed in accordance with this invention and shown applied.

Fig. 2 is an end elevation thereof.

Fig. 3 is a detail cross sectional view.

Fig. 4 is a detail sectional view taken on the line 44 of Fig. 1, and

Fig. 5 is a detail sectional view taken on the line 5-5 of Fig. 1.

In the embodiment illustrated, the riddle 1 constituting this invention comprises a supporting structure including two substantially triangular end members 2 and 3 connected at their upper ends by cross bars 4. The apices of these end members extend downwardly and through the upper portion of said ends passes a tube 5 in which is rotatably mounted a shaft 6, said shaft adapted to extend at opposite ends through the end members 2 and 3 and the shaft mounted therein, carrying at one end a power transmitting pulley 7 and at its other end a beveled gear 8 which meshes with a corresponding gear 9 mounted on a crank shaft 10. This crank shaft 10 is shown journaled in Serial No. 614,258.

brackets 11 and 12 which extends laterally from the end member 2.

A shaking screen 13 is mounted for longi tudinal sliding movement on the tube 5 between the end members 2 and 3 and is held in operative position relative to said members by means of a guide 14 carried by one of the side bars 4. This guide 14 is shown in the form of a bracket having vertically spaced laterally extending flanges or plates 15 and 16 which straddle the frame of the shaking screen 13 as is shown clearly in Fig. 5, and which operates to hold the screen against tilting movement relatively to the supporting structure which includes the end members 2 and 3.

A link 17 connects one end of the screen 13 with the crank shaft 10, and as shown clearly in Fig. 1 when the shaft is turned the screen will be reciprocated or shaken longitudinally in its supporting structure.

As shown, this screen 13 has a plurality of transversely extending longitudinally spaced ribs 18 mounted on its upper face,

which are designed for guiding the grain down onto the conveyor 19.

The riddle 1 which includes the shaking frame 13 and its supporting structure, is

mounted for floating movement by means of inclined bars 20 and 21 which are bifurcated at their upper ends and straddle the project-ing ends of the sleeve 5. This mounting of the riddle 1 in these bars adapts it to swing freely therein so that no matter in what position the thresher which carries the bars is located, the riddle will assume a horizontal position.

Mounted between the ends 2 and 3 and connecting the inclined edges thereof are two screen members 22 and 23, below which is secured metal walls 24. In the space 25 between the screens 22 and 23 and the walls 24 is designed to be mounted a conveyor shown at 26 for carrying ofi the seeds and therein and which is so supported by means 110 of the suspension of said riddle in the bifurcated arms 20 and 21 that the riddle will These conremain with its screen 13 in proper position no matter what position the thresher or separator w1th wh1ch 1t is connected assumes.

It is of course understood that the thresher or separator oftentimesis located on uneven ground or on a hillside, and when so disposed, the riddle will swing on its journals and to proper operative position without any attention on the part of the operator. 7

The link 17 which connects the screen 13 with the crank shaft lOoperates through an opening 2 formed in the end member 2 as is shown clearly in Fig. 2, and thereby avoids all possibility of binding of the link during its operation. y 7

The conveyors 19, 26 and 27 are shown driven from the crank shaft 10 by means of suitable belts 28, 29 and 30 respectively, (see, Fig. '2). It is of course understood that these belts pass over suitable pulleys mounted on the crank shaft and on the respective shafts over whichthe conveyors travel.

I claim 1; The combination of a supporting strueture'in'eluding a pair of spaced bars having bifurcated upper ends, a r1ddlehav1ng a members and connecting sidebars, a tubular shaft extending through said end members and projecting at opposite ends therebeyond,

a screen mounted'to reciprocate on saidshaft .40 bet-weenisaid end members, adrivingshaft extending through said tubular shaft and having a of said shaft for reciprocating said screen;

In testimony that I claim the foregoing power transmittingpulleyi at one iend, and means connected with the other end as my own, I have hereto afiix'ed my'signature in the presence of two Witnesses.

' CHARLES E."WYMAN.'-

\Vitnesses:

L. VAN DENBERGH, V P. G. MORGAN. 

